Casement window



Patented July 7, IQSI g@unirse ermee Arasrfessice AKARL F. JORSS, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO CRITTLL CASEMENT WINDOW COMPANY, OF DETROIT, MICHIGAN, A CORPORATION 0F MICHI- GAN cnsnmmir WINDOW Application ntiled May 3, 1930. Serial No. 449,615.'

panying drawings, in which Fig. l is a fragmentary horizontal section of a easement window involving the novel construction.

Fig. 2'is a fragmentary front elevation, partly in section.

Fig. 3 is a section on line 3-3 of Fig. 2.

In metalcasement windows, it is frequentlydesired to have the screen frame fixed to the inner face of the easement frame, but

such an arrangement has proven more or less unsatisfactory, because lof the necessity of passing certain elements of the latchingl mechanism through openings in the wire mesh fabric ofgthe screen, which involves diiculties in keeping the opening closed and in preventing damage to the screen fabric. rIhe present invention is designed particularly to providel an eflec'tivelatch which does not pass through any portion of the mesh fabric of the screen, but which is provided with a specially shaped bolt or dog member, which operates through a slot in the Vscreen frame and effectively closes the slot to the ingress of'insects in all positions of the latch.4

In the drawings, 1 indicates the metal frame of a easement windovo'f standard coname and isadapted tobe swung outwardly, when the window is to be opened by the usual mechanism provided for' opening andclosing the sash.

- Fixed to the innerfaee of the easement frame 1 is a screen having a sheet metal frame 3 L4of channel form'in which the `wire mesh fabric 3 is. secured in an appro riate manner,"the' opening of the annel t je of the closed by the dog screen being directed toward the sash or the outside of the window, but the screen, as a whole, lying wholly inside of the sash.

Mounted on a face plate 4, which is bolted or otherwise secured to the inside of the frame 1, is a latchcomprising a pivot stud 5, a handle 6 and a bolt o'r dog, such as 7, which latter is of substantially sector shape having an arcuate outer edge concentric with the pivotal axis of the handle.

Fixed to the inner face of the frame of uthe sash 2 is aslotted keeper 8 adapted to be engaged by the bolt or dog 7 of the latch, when the window is locked, one inner face of the slot in the keeper being beveled, so that the engagement of the latch and dog therewith will draw the sash to a tight seat against the frame. The keeper 8, when the of the screen frame in the manner and form shown in Figs. 1 and Sand said screen frame on the side adj acent'the latch and in substantial alignment with the keeper is provided with a slot 9 in which the dog or bolt fof the keeper operates and which is practically closed by the dog in all positions of the latch, the two extreme positions of the do in locking and unlocking positions being lndicated in full and dottedv lines in Fig. 2. This arrangement obviates the general objection to making openings in the mesh fabric of the screen and nevertheless provides an effective ,latch -which may be operated at all times without uncovering an opening through whichinsects may enter, masmuch as the only opening in the screen structure if: that in the side thereofbetween the latch and the keeper,"

which` opening, Yas stated, is substantially `closed or filled at all times by the dog 7 What I claim is:

1. In a -combined veasement window land sash is closed, projects within the channel channel frame screen xed to the easement -av form' to substantially close the-slot in all positions ofthe latch. j

2. a combinedfcasement window 'and frame, a latch pivoted to the easement frame, Y

'loo

2 nemen@ channel frame screen fixed to the easement frame, a latch pivoted to the easement frame having a substantially sector-shaped dog, and a keeper on the sash frame projecting into 5 the channel of the screen frame, che screen' frame having a slot therein through which the dog operates and which is substantially closed by the dog in all positions of the latch. In testimony whereof I aix my signature.

KARL F. JORSS. 

